i just bought a used Spyder Electra ACS it looks great feels good but it doesnt fire properly i tried charging the battery but when i fire the gun it just fires once then the battery light flashes and the secondary safety comes back on i think the rechargable battery is toast but i dont know... Any suggestions would be great thanks

are you using the battery supplied by Spyder? you do need to use the 9.6v battery for your marker to cycle the trigger properly.

do you have full tank of air/co2? if it is low, this can choke the marker which can cause it to malfunction.

also, are you dry firing (shooting with no paintballs) or firing paintballs? some times when you fire a paintball, it helps with cycling the marker (recocking) after you pull the trigger. no paintballs may not have enough back pressure to recock the marker.

if you took the marker apart, it is a slim possibility that you may have swapped springs or something else was installed incorrectly.

yeah the new battery should fix it. If it hadnt switched to safety mode and had just clicked the solenoid when you tried to fire it, it would be the capacitor that would be bad (which is also a common problem with old electro frames)